Active:Tristana places an explosive charge on the target enemy or enemy turret. After 4 seconds the charge explodes, dealing physical damage to nearby enemies. The explosion radius is doubled when used on a turret.

Tristana's basic attacks against the target increase Explosive Charge's damage by 30%, stacking up to 4 times for a maximum 120% increase. If the target already has 4 stacks and is damaged by another of her basic attacks or Rocket Jump, the charge detonates immediately.